5820k Audio Production Build w/ Video

[Dreamcaptain]

I'm putting together a PC for the first time to replace a laptop for recording, audio production (using multiple tracks, VSTs, processors through Sonar) and some basic video production (using Vegas). I've frankensteined a build from reviews and forum posts (thanks community members) and was hoping to get some opinions/advice/notifications of glaring errors on what I've got so far.

In addition to the following I will be using an external audio interface/sound card, monitors and external HDDS for storage. Possibly an old sound card if compatible. OS will be Windows 7 or 10.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-5820K 3.3GHz 6-Core Processor (£343.39 @ Kustom PCs)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£29.99 @ Amazon UK)
Motherboard: Asus X99-A ATX LGA2011-3 Motherboard (£204.00 @ Amazon UK)
Memory: Kingston FURY 16GB (1 x 16GB) DDR4-2400 Memory (£68.40 @ Amazon UK)
Storage: Samsung 120GB 2.5" Solid State Drive (£44.78 @ Amazon UK)
Video Card: Zotac GeForce GT 730 2GB Video Card (£44.99 @ Amazon UK)
Case: Thermaltake Suppressor F31 ATX Mid Tower Case (£58.97 @ More Computers)
Power Supply: Corsair RMx 650W 80+ Gold Certified Fully-Modular ATX Power Supply (£85.36 @ Amazon UK)
Total: £879.88
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-27 18:07 BST+0100

Priorities were to keep it quiet and somewhat 'futureproof'. I'm currently undecided on going for 2x8gb ram or upgrading from 1 to 2x16gb in the near future to combat bottlenecking. The video card is mostly guesswork trying to get the minimum for the basic video editing and keep it quiet.

I'm a complete beginner with this stuff. Any thoughts & opinions welcomed & appreciated.

 

[Dreamcaptain]

Alternatives so far include a slightly downgraded build with - 5820k CPU & ASUS X99-A mono and an x99 build recommended by a friend with more substantial differences featuring the 5820k & ASROCK Extreme 4. Again any opinions much appreciated.

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-5820K 3.3GHz 6-Core Processor (£343.39 @ Kustom PCs)
CPU Cooler: be quiet! PURE ROCK 51.7 CFM Sleeve Bearing CPU Cooler (£24.01 @ Amazon UK)
Motherboard: Asus X99-A ATX LGA2011-3 Motherboard (£204.00 @ Amazon UK)
Memory: PNY Anarchy 16GB (2 x 8GB) DDR4-2133 Memory (£43.16 @ Amazon UK)
Storage: Samsung 120GB 2.5" Solid State Drive (£44.86 @ Amazon UK)
Video Card: Asus Radeon HD 5450 1GB Video Card (£27.99 @ Amazon UK)
Case: Thermaltake Suppressor F31 ATX Mid Tower Case (£58.97 @ More Computers)
Power Supply: EVGA SuperNOVA G2 550W 80+ Gold Certified Fully-Modular ATX Power Supply (£70.97 @ Amazon UK)
Total: £817.35
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-28 15:25 BST+0100

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-5820K 3.3GHz 6-Core Processor (£343.39 @ Kustom PCs)
CPU Cooler: Cooler Master Hyper 212 EVO 82.9 CFM Sleeve Bearing CPU Cooler (£30.99 @ Ebuyer)
Motherboard: ASRock X99 Extreme4 ATX LGA2011-3 Motherboard (£178.52 @ More Computers)
Memory: Kingston HyperX Fury Black 16GB (2 x 8GB) DDR4-2133 Memory (£59.99 @ Amazon UK)
Storage: Samsung SM951 256GB M.2-2280 Solid State Drive (£99.95 @ Overclockers.co.uk)
Video Card: Sapphire Radeon R9 290 4GB Tri-X OC Video Card
Case: Fractal Design Core 2300 ATX Mid Tower Case (£44.95 @ BT Shop)
Power Supply: EVGA 700W 80+ Bronze Certified ATX Power Supply
Total: £757.79
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-07-28 15:31 BST+0100